CNMU160812-D57T WKP25S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating, the WKP25S grade and a robust 80° rhombic geometry for reliable milling of steel and cast iron; order this insert directly via Metav Werkzeuge or consult the team for application advice.

CNMU160812-D57T WKP25S milling insert by Walter Tools — 80° rhombic, Tiger·tec Silver coating, for steel and cast iron

The CNMU160812-D57T WKP25S is a precision milling insert designed for productive finishing and semi-finishing operations in steel and cast iron, offering enhanced wear resistance through its Tiger·tec Silver technology.

• Tiger·tec Silver coating for extended life
• WKP25S grade optimised for steel and cast iron
• 80° rhombic shape for versatile milling
• 0° negative rake and 1.2 mm corner radius

Consistent process reliability with advanced coating technology

The insert’s Tiger·tec Silver coating and the WKP25S carbide grade deliver a combination of thermal stability and wear resistance tailored to the demands of machining steel and cast iron. This results in predictable tool life and fewer unscheduled tool changes, improving overall throughput. By stabilising the cutting edge at elevated temperatures, the coating supports steady metal removal rates and promotes a uniform surface finish — a compelling rational advantage for production environments seeking reproducible results.

Geometry that improves cutting stability and surface quality

The 80° rhombic shape paired with a 1.2 mm corner radius and 0° rake (negative) produces a robust cutting edge that resists chipping and maintains dimensional stability during interrupted cuts. The integrated chipbreaker D57T controls chip formation for the target materials, reducing the risk of built-up edge and improving swarf evacuation. These geometric choices translate into tangible benefits: longer insert life, more consistent component tolerances and fewer rework cycles.

Practical compatibility and selection ease for toolrooms

With a compact 16 size and a standard tolerance class M, this insert fits common toolholder systems used in milling centres and CNC machining. The specification supports efficient integration into existing tool inventories while the Tiger·tec Silver series naming aids quick grade selection. For shop floors aiming to streamline set-up and reduce process variation, this insert offers a pragmatic balance of durability and versatility. If additional machining parameters are required for a specific set-up, the technical team can advise on cutting speeds and feeds for optimal results.

Contact Metav Werkzeuge for tailored recommendations on Walter Tools Tiger·tec Silver inserts and ensure the correct grade and geometry for steel and cast iron milling applications

Technical data

• SKU: CNMU160812-D57T-WKP25S-WALTER
• Designation: CNMU160812-D57T WKP25S
• Brand: Walter Tools
• Product type: Milling indexable insert
• Series: Tiger-tec Silver
• Grade: WKP25S

Facts

• Corner radius: 1.2 mm
• Rake angle: 0° (negative)
• Shape: Rhombus 80°
• Size: 16
• Thickness: 08
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Chipbreaker: D57T
• Applicable materials: Steel (P), Cast iron (K)
• Base material: Coated cemented carbide
• Execution: U

FAQ

Is this insert suitable for stainless steel?
The CNMU160812-D57T WKP25S insert is specified for steel and cast iron; stainless steel suitability is not indicated for this grade.

What benefits does the Tiger·tec Silver coating provide?
Tiger·tec Silver on the CNMU160812-D57T WKP25S increases thermal stability and wear resistance, improving tool life and process consistency in steel and cast iron machining.

Which chipbreaker is fitted and what does it do?
This insert uses the D57T chipbreaker, which promotes controlled chip formation and reliable swarf evacuation during typical steel and cast iron operations.

How does the 0° negative rake affect cutting?
A 0° negative rake creates a stronger cutting edge and increased edge life, suitable for robust milling conditions and interrupted cuts.

What tolerance and size standards apply?
The insert is produced to tolerance class M, size 16, with a plate thickness of 08, matching common holder systems for secure mounting.

Can this insert be used for roughing and finishing?
The geometry and grade support both semi-finishing and finishing tasks; selection of specific parameters will depend on the application and machine capability.

Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned solely for explanation. There is no affiliation between our company and the named manufacturers. The offered article is an original, brand-new product from the manufacturer.